skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nanoimprinted superlattice metallic photonic crystal as ultraselective solar absorber

Journal Article · · Optica
 [1];  [1];  [1];  [2];  [2];  [3];  [4];  [4];  [4]
  1. Johannes Kepler Univ., Linz (Austria)
  2. Technical Univ., Vienna (Austria)
  3. Univ. of North Carolina, Chapel Hill, NC (United States)
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Here, a two-dimensional superlattice metallic photonic crystal (PhC) and its fabrication by nanoimprint lithography on tantalum substrates are presented. The superior tailoring capacity of the superlattice PhC geometry is used to achieve spectrally selective solar absorption optimized for high-temperature and high-efficiency solar-energy-conversion applications. The scalable fabrication route by nanoimprint lithography allows for a high-throughput and high-resolution replication of this complex pattern over large areas. Despite the high fill factor, the pattern of polygonal cavities is accurately replicated into a resist that hardens under ultraviolet radiation over an area of 10 mm2. In this way, cavities of 905 nm and 340 nm width are achieved with a period of 1 μm. After pattern transfer into tantalum via a deep reactive ion-etching process, the achieved cavities are 2.2 μm deep, separated by 85–95 nm wide ridges with vertical sidewalls. The room-temperature reflectance spectra of the fabricated samples show excellent agreement with simulated results, with a high spectral absorptance approaching blackbody absorption in the range from 300 to 1900 nm and a steep cutoff. The calculated solar absorptivity of this superlattice PhC is 96% and its thermal transfer efficiency is 82.8% at an operating temperature of 1500 K and an irradiance of 1000 kW/m2.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0001299
OSTI ID:
1459181
Journal Information:
Optica, Vol. 2, Issue 8; ISSN 2334-2536
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 30 works
Citation information provided by
Web of Science

References (26)

A proposed thermophotovoltaic solar energy conversion system journal January 1979
Theoretical limits of thermophotovoltaic solar energy conversion journal April 2003
Absorber and emitter for solar thermo-photovoltaic systems to achieve efficiency exceeding the Shockley-Queisser limit journal January 2009
Radiation filters and emitters for the NIR based on periodically structured metal surfaces journal November 2000
All-metallic three-dimensional photonic crystals with a large infrared bandgap journal May 2002
High-temperature resistive surface grating for spectral control of thermal radiation journal March 2003
Two-dimensional tungsten photonic crystals as selective thermal emitters journal May 2008
Tungsten black absorber for solar light with wide angular operation range journal May 2008
Enabling high-temperature nanophotonics for energy applications journal January 2012
Thermal stability of micro-structured selective tungsten emitters
  • Schlemmer, C.
  • THERMOPHOTOVOLTAIC GENERATION OF ELECTRICITY: Fifth Conference on Thermophotovoltaic Generation of Electricity, AIP Conference Proceedings https://doi.org/10.1063/1.1539374
conference January 2003
Fabrication of carbon/refractory metal nanocomposites as thermally stable metallic photonic crystals journal January 2011
Electrodeposited 3D Tungsten Photonic Crystals with Enhanced Thermal Stability journal November 2011
High-temperature stability and selective thermal emission of polycrystalline tantalum photonic crystals journal January 2013
A nanophotonic solar thermophotovoltaic device journal January 2014
Metallic Photonic Crystal Absorber-Emitter for Efficient Spectral Control in High-Temperature Solar Thermophotovoltaics journal April 2014
Superlattice photonic crystal as broadband solar absorber for high temperature operation journal January 2014
Fabrication of two-dimensional tungsten photonic crystals for high-temperature applications
  • Araghchini, M.; Yeng, Y. X.; Jovanovic, N.
  • Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, Vol. 29, Issue 6 https://doi.org/10.1116/1.3646475
journal November 2011
Large-area fabrication of high aspect ratio tantalum photonic crystals for high-temperature selective emitters
  • Rinnerbauer, Veronika; Ndao, Sidy; Xiang Yeng, Yi
  • Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, Vol. 31, Issue 1, Article No. 011802 https://doi.org/10.1116/1.4771901
journal January 2013
High-temperature tantalum tungsten alloy photonic crystals: Stability, optical properties, and fabrication journal September 2013
Imprint of sub‐25 nm vias and trenches in polymers journal November 1995
Mold-assisted nanolithography: A process for reliable pattern replication journal November 1996
Nanoimprint lithography: An old story in modern times? A review
  • Schift, Helmut
  • Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, Vol. 26, Issue 2, Article No. 458 https://doi.org/10.1116/1.2890972
journal January 2008
Equalising stamp and substrate deformations in solid parallel-plate UV-based nanoimprint lithography journal May 2008
Design and global optimization of high-efficiency thermophotovoltaic systems journal January 2010
S4 : A free electromagnetic solver for layered periodic structures journal October 2012
Meep: A flexible free-software package for electromagnetic simulations by the FDTD method journal March 2010

Cited By (10)

Tungsten-Carbon Nanotube Composite Photonic Crystals as Thermally Stable Spectral-Selective Absorbers and Emitters for Thermophotovoltaics journal August 2018
Repeatable and metal-independent nanotransfer printing based on metal oxidation for plasmonic color filters journal January 2019
High light extraction efficiency into glass substrate in organic light-emitting diodes by patterning the cathode in graded superlattice with dual periodicity and dual basis journal June 2017
Plasmonic interference lithography by coupling the bulk plasmon polariton mode and the waveguide mode journal January 2020
Holographic fabrication of graded photonic super-crystals using an integrated spatial light modulator and reflective optical element laser projection system journal January 2017
Simultaneous direct holographic fabrication of photonic cavity and graded photonic lattice with dual periodicity, dual basis, and dual symmetry journal January 2017
Theoretical Approach to Simulate Efficient Selective Solar Absorbers With Micro or Nano Structured Arrays journal March 2018
Extraordinary Light-Trapping Enhancement in Silicon Solar Cell Patterned with Graded Photonic Super-Crystals journal December 2017
Holographic Fabrication and Optical Property of Graded Photonic Super-Crystals with a Rectangular Unit Super-Cell journal October 2018
Effects of Photonic Band Structure and Unit Super-Cell Size in Graded Photonic Super-Crystal on Broadband Light Absorption in Silicon journal May 2019